package com.school.manager.config;

import com.baomidou.mybatisplus.extension.plugins.PaginationInterceptor;
import com.school.manager.common.Constants;

import org.springframework.boot.web.server.ConfigurableWebServerFactory;
import org.springframework.boot.web.server.ErrorPage;
import org.springframework.boot.web.server.WebServerFactoryCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.HttpStatus;

/**
 * description：设置分页插件
 * date：2021/10/222:53 下午
 */

@Configuration
public class MybatisPlusConfig {
    @Bean
    public PaginationInterceptor paginationInterceptor() {
        PaginationInterceptor paginationInterceptor = new PaginationInterceptor();
        // 设置请求的页面大于最大页后操作， true调回到首页，false 继续请求  默认false
        // paginationInterceptor.setOverflow(false);
        // 设置最大单页限制数量，默认 500 条，-1 不受限制
        // paginationInterceptor.setLimit(500);
        // 开启 count 的 join 优化,只针对部分 left join
        return paginationInterceptor;
    }


    /**
     * 设置默认页面
     * @return
     */
    @Bean
    public WebServerFactoryCustomizer<ConfigurableWebServerFactory> buildCustomizer() {
        return factory -> {
            ErrorPage errorPage = new ErrorPage(HttpStatus.NOT_FOUND, Constants.BASE_URL);
            factory.addErrorPages(errorPage);
        };
    }
}
